Jaguar revealed their Goodwood special edition XKR yesterday at the annual Festival of Speed. The limited edition pussy-cat gets an extra 20 horses under the bonnet, bringing this envious-looking little kitty up to 530 HP.

The one-off performance model features a lowered suspension and a tweaked exhaust system for a louder and more intimidating sound and was purposely built for the event, painted in an extremely distinct lime-green color while the coupe also featured special exterior graphics in gray and orange.

Other styling tweaks that differentiate this model over the standard 2010 XKR facelift include the 21-inch alloys and the satin graphite detailing to the front grilles, door mirrors, rear signature blade, side window surrounds, headlights and bonnet louvres.

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What's more is Jaguar's engineers fiddled around with the XKR's supercharged 5.0-liter V8 that in standard form makes 510 HP and 461 lb-ft of torque launching the sports coupe from 0-to-60 MPH in 4.6 seconds. In the XKR Goodwood Special, output is lifted to 530 HP and torque to 516.2 lb-ft. No word on what that'll do to the final 0-to-60 time. Gallery below.